Leslie Carter, Backstreet Boy Nick Carter's sister, died yesterday in New York City at age 25.
The Carters released a statement saying, "Our family is grieving right now and it's a private matter. We are deeply saddened for the loss of our beloved sister, daughter, and granddaughter, Leslie Carter. We request the utmost privacy during this difficult time."
According to E! News, the body is currently being examined at the Erie County Medical Examiner's Office in upstate New York, and the cause of death is still unknown.
Nick Carter plans to dedicate his upcoming summer tour with the Backstreet Boys to his sister, and younger brother Aaron Carter has taken time away from his off Broadway play The Fantasticks to mourn the family's tragic loss.
The family had a reality show, House of Carters, on the E! Network in which Leslie was featured in 2006.
Leslie was an aspiring singer, and gave birth to a daughter last April.
Related: Nick Carter Not Canceling Tour After Sister's Death
Leslie Carter’s Autopsy Inconclusive